https://meritforcustomers.microsoftcrmportals.com/forums/general-discussion/24061530-098d-ef11-9442-000d3ae6628a 2. Can I cancel my Expedia flight within 24 hours? Yes, Expedia offers a 24-hour cancellation policy that allows you to cancel your flight for a full refund, with no penalty, as long as the cancellation is made within 24 hours of booking. After this window, airline rules and fees apply.Apr 15, 2022